Scali MPI Connect Release 4.4 Users Guide | Escali guide

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Scali MPI Connect Release 4.4 Users Guide

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Escali manual Scali MPI Connect Release 4.4 Users Guide

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Scali MPI ConnectTM Users Guide Copyright 1999-2005 Scali AS. All rights reserved Acknowledgement Scali Bronze Software Certificate II Software License Terms Commencement MaintenanceGrant of License Export Requirements SupportLicense Manager Sub-license and distribution LICENSEE’s Obligations SCALI’s Obligations Transfer Title to Intellectual Property Rights Compliance with Licenses Warranty of Title and Substantial Performance Scali MPI Connect Release 4.4 Users Guide Vii Limitation on Remedies and Liabilities Miscellaneous Proprietary Information Governing Law Scali MPI Connect Release 4.4 Users Guide Table of contents Profiling with Scali MPI Connect Appendix a Example MPI code Scali MPI Connect Release 4.4 Users Guide Scali MPI Connect product context Chapter Platforms supported Scali mailing lists SMC FAQ SMC release documentsProblem reports Support Feedback How to read this guideAcronyms and abbreviations Licensing NIC Typographic conventions Terms and conventionsGUI style font Typographic conventions Scali MPI Connect components Description of Scali MPI Connect SMC network devices Ethernet Devices Direct Access Transport DATNetwork devices Shared Memory Device Using detstat Using detctl3.2 DET 5.1 IB MyrinetInfiniband 4.1 GM 6 SCI Communication protocols on DAT-devicesChannel buffer Eagerbuffering protocol Inlining protocolTransporter protocol Support for other interconnects MPI-2 FeaturesZerocopy protocol Scali MPI Connect Release 4.4 Users Guide MPI-2 Features Running Setting up a Scali MPI Connect environmentCompiling and linking Scali MPI Connect environment variables Linker flags Compiler support Naming conventions Running Scali MPI Connect programs Basic usage Mpimon monitor programIdentity of parallel processes Program spec Controlling options to mpimonStandard input Standard output Network options How to provide options to mpimon Mpirun usage Mpirun wrapper script Part part Running with tcp error detection TfdrSuspending and resuming jobs Running with dynamic interconnect failover capabilities Debugging with a sequential debugger Debugging and profiling Debugging with Etnus Totalview Using built-in segment protect violation handlerBuilt-in-tools for debugging Assistance for external profiling Communication resources on DAT-devices Controlling communication resourcesChannelinlinethreshold size to set threshold for inlining Matching MPIRecv with MPIProbe Using MPIIsend, MPIIrecvUsing MPIBsend Good programming practice with SMC Unsafe MPI programs Error and warning messagesUser interface errors and warnings Fatal errors Mpimon options Prefix Giving numeric values to mpimonPostfix Scali MPI Connect Release 4.4 Users Guide Example Profiling with Scali MPI Connect Tracing Using Scali MPI Connect built-in trace +relSecs S eTime where AbsRank MPIcallcommNamerankcall-dependant-parameters where Example Features Timing Using Scali MPI Connect built-in timing MPIcallDcallsDtimeDfreq TcallsTtimeTfreq Count!avrLen!zroLen!inline!eager!transporter! where Using the scanalyzeCommrank recv from fromworldFromcommonFields Commrank send to toworldTocommonFields where For timing This produces the following report Using SMCs built-in CPU-usage functionality Scali MPI Connect Release 4.4 Users Guide Automatic buffer management Tuning communication resources First iteration is very slow How to optimize MPI performanceBenchmarking Caching the application program on the nodes Memory consumption increase after warm-up Collective operations Finding the best algorithm Programs in the ScaMPItst package Appendix aImage contrast enhancement Scali MPI Connect Release 4.4 Users Guide Original File format Why does not my program start to run? When things do not work troubleshootingAppendix B Why does my program terminate abnormally? Why can I not start mpid?General problems Appendix C Per node installation of Scali MPI Connect Example Install Scali MPI Connect for TCP/IPInstall Scali MPI Connect for Direct Ethernet Install Scali MPI Connect for Myrinet License options Install Scali MPI Connect for InfinibandInstall Scali MPI Connect for SCI Install and configure SCI management software Troubleshooting Network providers Uninstalling SMCScali kernel drivers Troubleshooting the GM provider Troubleshooting 3rdparty DAT providers Scali MPI Connect Release 4.4 Users Guide Bracket expansion Appendix D Bracket expansion and groupingGrouping Scali MPI Connect Release 4.4 Users Guide Related documentation Appendix E Scali MPI Connect Release 4.4 Users Guide List of figures Scali MPI Connect Release 4.4 Users Guide Transporter protocol Index SSP